Japanese Sword Glossary
How to use this Japanese sword glossary
Use this glossary as a bridge between educational reading and product comparison. When a term sounds unfamiliar, check the meaning here, then return to product photos with clearer eyes.
Quick FAQ
Is this glossary a buying guide?
It is a reference page first. For buying, use it together with product photos, steel notes, edge options, shipping policy, and reviews.
Why do some Japanese sword terms overlap?
Historical terms, collector language, and modern product wording can overlap. When in doubt, compare the actual photos and stated dimensions.
| Term | Definition |
|---|---|
| ara-nie | Large nie crystals. |
| ashi | Thin line that runs across the temper line (hamon) to the cutting edge (ha). |
| ayasugi-hada | Regular wavy surface grain pattern (jihada). |
| bakumatsu-to | A sword made during an era in the late Edo period 1853-1867. |
| bizen | Archaic province of Japan, modern-day Okayama prefecture. |
| bokuto | See bokken. |
| boshi | Temper line (hamon) of the blade point (kissaki). |
| bu | Japanese imperial form of measurement. |
| chikei | Black gleaming lines of nie that appear in the ji. |
| chirimen-hada | Distinctly visible mokume-hada with a clearer steel than in similar but coarser patterns. |
| choji abura | Clove oil, used for preserving blades. |
| choji midare | An irregular hamon pattern resembling cloves, with a round upper part and a narrow constricted lower part. |
| chokuto | A straight sword primarily produced during the ancient period. |
| daisho | In context any pair of Japanese swords of differing lengths (daito and shoto) worn together. |
| dogane | Tubular fittings on the tsuka or saya. |
| daito | Any type of Japanese long sword, the larger in a pair of daisho. |
| fuchigane | Decorative reinforcing collar attached to the base of the tsuka. |
| fukura | The cutting edge (ha) of the blade point (kissaki). |
| funbari | Tapering of the blade from the base (machi) to the point (kissaki). |
| gassan-hada | See ayasugi-hada. |
| gendaito | Swords produced after 1876. |
| goban kaji | Swordsmiths summoned by the retired Emperor Go-Toba to work at his palace in monthly rotations. |
| ha | The tempered cutting edge of a blade. |
| habaki | Small metal collar that buffers the tsuba and secures the blade into the saya. |
| habaki-moto | Part of the blade that sits under the habaki. |
| ichimai boshi | A fully tempered point area (kissaki) because the hamon turns back before reaching the point. |
| ichimonji kaeri | A boshi which turns back in a straight horizontal line with a short kaeri. |
| ikubi-kissaki | A short, stubby blade point (kissaki). |
| ji | Area between the ridge (shinogi) and the hamon. |
| jigane | Generally used to refer to the material of the blade. |
| jihada | Visible surface pattern of the steel resulting from hammering and folding during the construction. |
| kaeri | Part of the temper line (hamon) that extends from the tip of the bōshi to the back edge (mune). |
| kaiken | A dagger concealed in the clothing. |
| kasane | Blade thickness measured across the back edge (mune). |
| machi | Notches that divide the blade proper from the tang. |
| masame-hada | Straight surface grain pattern (jihada). |
| matsukawa-hada | Surface grain pattern (jihada) resembling the bark of a pine tree. |
| nagakatana | Any sword with a blade longer than a tanto. |
| nagamaki | Large sword with a usually katana-sized blade and a very long handle of about equal length. |
| naginata | Pole weapon wielded in large sweeping strokes. |
| sageo | Cord attached to the kurikata to help secure the sword in the belt. |
| sakihaba | Blade width (mihaba) at the yokote. |
| sakikasane | Blade thickness (kasane) at the yokote. |
| tachi | Curved sword with a blade length longer than 60 cm. |
| tamahagane | Japanese steel, used for the manufacture of Japanese swords. |
| tsuka | Handle of a Japanese sword. |
| uchigatana | A Japanese sword worn edge-up in the obi. |
| wakizashi | A short sword, often worn together with a katana as the daisho. |
| yakiba | The hardened edge of the blade, formed by the hamon. |
| yakidashi | The area of the blade where the hardened edge (yakiba) begins. |
| yakidashi | The notch at the habaki-moto where the hardened edge (yakiba) starts. |
| yari | A Japanese spear. |
| yasurime | File marks on the tang. |
| yokote | Line that separates the tip area (kissaki) from the rest of the blade. |
| zanmai | Blade-forging technique involving a mixture of tamahagane from several different layers of tatara. |
From terms to buying decisions
Use the glossary to understand product-page words, then compare sword type, blade shape, fittings, steel, shipping, duties, and return terms before checkout.
Glossary navigation for Japanese sword terms
A glossary works best when it answers the next question quickly: what term am I seeing, and where should I compare examples?
Outreach angle: this is useful for terminology pages, martial arts glossaries, and culture/history resources that need a non-technical reference.
